Troubleshooting Errors - Omron trajexia CJ1W-MCH72 Operation Manual

Troubleshooting Errors

6-3
Troubleshooting Errors
6-3-1 Initial Hardware Test Error
6-3-2 Error Log Access Error
6-3-3 PLC Watchdog Timeout Error
6-3-4 Communication Error Between the PLC CPU unit and the CJ1W-
MCH72 unit
6-3-5 Other CPU Error
350
/i
Problem
FLASH error, RAM error, CPU error,
System software error during initialization.
/i
Problem
Error log has been detected to be corrupt
or error log cannot be written.
/i
Problem
PLC CPU stalled, not servicing watchdog
timer.
/i
Problem
The communication on the backplane of
the PLC system has not been refreshed in
a timely manner, backplane
communication signal failure.
Additional actions to take:
When this error happens during operation, a user can take any additional action if
necessary in BASIC program. The occurrence of this error during operation can be
checked by reading bit 0 of the value returned by the PLC_STATUS(0) BASIC
command and value returned by the PLC_STATUS(1) BASIC command (see section
4-2-185 for more details on PLC_STATUS BASIC command).
/i
Problem
Other error occurred in the units CPU.
Solution
Turn off the PLC system and then turn it
back on. If the error persist, replace the
CJ1W-MCH72 unit.
Solution
Turn off the PLC system and then turn it
back on. If the error persist, replace the
CJ1W-MCH72 unit.
Solution
Turn off the PLC system and then turn it
back on. If the error persist, replace the
PLC CPU unit.
Solution
Turn off the PLC system and then turn it
back on.
Solution
Turn off the PLC system and then turn it
back on. If the error persist, replace the
CJ1W-MCH72 unit.
Section 6-3